Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 5L Back Catalog number: HEDTDL31_5L Availability: In the manufacturer's stock Price on request - + Recommended M-MCTOPI Removable lids for M-CTE120I, inert,pk 6 Price on request C-HSPH HiSorb handle, for manual probe extraction Price on request P-CP020 O-Rings, 23mm × 3mm i.d.,pk 20 Price on request